Hi Guys

Will like to hear your views and opinions on this product. I see it claims 0ms change over.

Thanks

 

yeah i would also like to get some feedback from anyone running Sigenergy systems as seems like a great system and thus far support from Sigenergy themselves has been brilliant. NOTE i am still researching on which system to deploy.

Advantages: 

- Oms Change over 

- 100% DoD on their SigenStor bataries 

- avd Fire detection / prevention ( temp sensors , internal fire-extinguister , Aearogel insulated pads, decompression valves , high temp resistacne inusation )

- much lower noise levels 

- Weatherproof ( IP54 GW / IP66 Inverter / Bataries ) - Ideal for coastal area.

- seems it comes with everything apart from the PV side 

- Faults - you dont have to take / send the unit in for repair , they send you a replacement and installer to resove at Sigenergy cost

 

Disadvanates 

- Seems more costly initial capital outlay 

- not as widely used / adpoted in SA as UK/AUS .. so not much info avaiable from end users.

 

Thanks in advance 

My initial thoughts: 

Clever design, good form factor across the range. Makes for scalability very easily. I  don't know the pricing but I can imagine it must be expensive. Also it uses AI to manage it's entire system on how you will use energy. So AI is great when I works but what happens when it doesn't? Imagine the frustration of trying to work with a system that is planning your usage & you not really part of that conversation. 

I like automation & lived with it in life critical equipment & it worked very well. AI unfortunately for me takes the leap a bit far because you are observed but not privy to the information. I like to know what a machine has planned for my house hold energy management. Also I think there needs to be a manual mode where one can manually do what they want to do. 

I hope there are these modes but for a residential modern home that will have an EV at some stage it's great. However, AI is relatively new...I would hate to be the guinea pig. I see that some want to use this on the Heavy C&I market & thats where I think the right tool for.the job comes to mind. It doesn't have a transformer so my guess is that it's a Gate Drive system. 

Unfortunately I don't have much confidence in that architecture for Heavy industrial places. 

Looks super modern & promising. Looks like it will be judged as time goes by but most average ppl will just buy a more simple easy cheaper manageable system that's not complicated. Maybe I'm just old & sceptical...

Edited September 28, 20241 yr by Steve87

I suspect the AI is just marketing for a regular algorithm and built in automations

yeah the AI portion is very vague at this stage .... in essence I think it means the ability to change the config manually is removed and the AI is going to manage the backend.. which is fine in UK/AUS but here we want the flexibility to adapt the system priorities when load shedding kicks in, if you are dependent on the Grid at all , or if sun power is not sufficient for a few days ( aka overcast / rainy and in winter ) 

Edited September 30, 20241 yr by IanK

 

I know I’m joining this late, but I have been quoted on a Sigenergy system and I’m quite seriously considering going ahead with it soon. The installer is a Herholdt’s Premium Partner and Master Electrician, so I’m hoping they’ll do a good job.

They’ve quoted me on the following:

1. Sigenergy single phase gateway

2. Sigenergy 10KWH inverter

3. Sigenergy 8KWH battery (ground mounted)

4. 12 x 550W panels (North facing)

This is within our budget for now, but the idea with the bigger inverter is to add more panels and battery storage within about a year, enabling us to run as much as possible off our system, even at night. Our primary goal is to cut energy costs, not merely get through load-shedding/outages.

We want a system that will last long and deliver well for what we’re paying, especially in terms of app usability.

We realise we’re taking a bit of a risk, but we figured that Herholdt’s has taken a HUGE risk running their whole Cape Town warehouse off Sigenergy. I also figured our findings might help other residential customers who are uncertain of making the jump.

We also use Plentify’s HotBot on our electric geyser and will enable SolarMode once our system is installed. This will ensure our geyser is never heated during loadshedding, but will default to using clean energy.

Please share your thoughts would enlighten a lot of us here...

3 minutes ago, Steve87 said:

Please share your thoughts would enlighten a lot of us here...

Will do! We've decided to go ahead, but just with 10 x 550W modules/panels for now.

I'll post pics once it's up and running in our garage and maybe some screenshots of the app.

8 hours ago, scholtz.gnome said:

I know I’m joining this late, but I have been quoted on a Sigenergy system and I’m quite seriously considering going ahead with it soon. The installer is a Herholdt’s Premium Partner and Master Electrician, so I’m hoping they’ll do a good job.

They’ve quoted me on the following:

1. Sigenergy single phase gateway

2. Sigenergy 10KWH inverter

3. Sigenergy 8KWH battery (ground mounted)

4. 12 x 550W panels (North facing)

This is within our budget for now, but the idea with the bigger inverter is to add more panels and battery storage within about a year, enabling us to run as much as possible off our system, even at night. Our primary goal is to cut energy costs, not merely get through load-shedding/outages.

We want a system that will last long and deliver well for what we’re paying, especially in terms of app usability.

We realise we’re taking a bit of a risk, but we figured that Herholdt’s has taken a HUGE risk running their whole Cape Town warehouse off Sigenergy. I also figured our findings might help other residential customers who are uncertain of making the jump.

We also use Plentify’s HotBot on our electric geyser and will enable SolarMode once our system is installed. This will ensure our geyser is never heated during loadshedding, but will default to using clean energy.

Out of curiosity, what was the price on the sigenergy system? Have seen a couple of videos of them the last weeks, they seem impressive

1 hour ago, Pho3niX90 said:

Out of curiosity, what was the price on the sigenergy system? Have seen a couple of videos of them the last weeks, they seem impressive

The quote came to R161k, including installation. We got another quote for a 10kVa Deye with 2 x 10kWh Deye batteries for R155k.

So, we opted for less battery power for now until we can afford another 8kWh or 5kWh Sigenergy, in the hopes that the newer system will last longer and perform better.

My electrician says the investment will be worth it. We shall see...

edit
My electrician gave me two quotes for Sigenergy. The other quote came to R231,380 and involved the following:

• 1 x Sigenergy single phase gateway

• 1 x 10kVa Sigenergy inverter

• 2 x 8kWh Sigenergy batteries

• 18 x 550W modules

• Installation of the above along with COC, of course

In case that gives you an idea of the pricing. Apparently the price difference between the 8kVa and 10kVa inverter is currently only about R3k!

Edited March 8, 20251 yr by scholtz.gnome

2 hours ago, scholtz.gnome said:

The quote came to R161k, including installation. We got another quote for a 10kVa Deye with 2 x 10kWh Deye batteries for R155k.

So, we opted for less battery power for now until we can afford another 8kWh or 5kWh Sigenergy, in the hopes that the newer system will last longer and perform better.

My electrician says the investment will be worth it. We shall see...

edit
My electrician gave me two quotes for Sigenergy. The other quote came to R231,380 and involved the following:

• 1 x Sigenergy single phase gateway

• 1 x 10kVa Sigenergy inverter

• 2 x 8kWh Sigenergy batteries

• 18 x 550W modules

• Installation of the above along with COC, of course

In case that gives you an idea of the pricing. Apparently the price difference between the 8kVa and 10kVa inverter is currently only about R3k!

What does a single 8kwh battery cost?

Price diff between first and last quote 76K, and diff is a 8kwh battery and 6 panels.

The Sigenergy is a really cool system from what I have seen, but the price difference might be the deal breaker.

The thing that you will need most as you continue the journey, is batteries! They are typically the most expensive, and it seems your only choice going forward is to stick to the brand. Where, with the Deye, you had endless options of battery brands.

The panels should net you around 850kwh per month. Hopefully this figure is close to your current monthly consumption, and if so, you will probably need tripple your battery capacity.

On 2024/08/05 at 4:36 PM, Voltageza said:

Hi Guys

Will like to hear your views and opinions on this product. I see it claims 0ms change over.

Thanks

 

I don't believe 0ms. I would believe "so fast you won't notice".

Their web site claims "It automatically detects outages and offers a seamless transition to backup power. Ensuring loads are supplied in the event of a power failure. You can track energy usage and control energy flow all with mySigen App"

And then: "Thanks to Sigenergy patented power control algorithm, we have achieved the most powerful 0ms load-side disruption, ensuring a seamless transition to PV+ESS power supply for all loads whenever the grid power fails, thereby you never notice a power outage."

OK... so maybe somebody with some technical expertise can define "load-side disruption". But it sounds an awful lot to me like "so fast you won't notice". If you think of my system it is really inverting all the time. You don't notice the change over, unless the grid voltage was very high or very low immediately before the grid goes down, in which case some LED lights might flicker once as they adjust to the voltage.

I'm erring on the side of cynicsm here, because reading that they claim it doesn't seem they're promising any more than a Sunsynk or a Deye or a Goodwe will do.

This brings us back to the quotes that were mentioned: 6 K less if you go Deye with more than double the battery capacity. I'd want to see a very rich feature set. Though if the guarantee includes replacing the faulty parts before the dodgy ones are taken away, then that's worth more than nothing.

On 2025/03/08 at 12:13 PM, scholtz.gnome said:

This is within our budget for now, but the idea with the bigger inverter is to add more panels and battery storage within about a year, enabling us to run as much as possible off our system, even at night. Our primary goal is to cut energy costs, not merely get through load-shedding/outages.

With any brand or combination of brands you have a limited resource that you must manage. We have a 10kWh battery and get through the night with plenty to spare. Family of mine also have 10kWh but don't get through the night on the battery - because of lifestyle and strategy choices they have made. We are two adults and can adapt our routines to make maximum use of solar during the day. They are two adults who have to go to the office, whose kids are in kindergarten and so must be washed, cooked for etc in the evening, and have heaters in the bedrooms. Even then I think my family members could be doing better, but they don't want to take chances. They also don't save much on their power bill.

So what do I do that they can't/don't? Firstly we run all the appliances during the day - dishwasher, washing machine, everything that can reasonably be called an "appliance". Pool pump runs during the daylight hours.

Water heating is on a timer and we have a heat pump (we had that before we had solar) which uses less energy than a geyser element. This gets run at 6:00 and at 12:00. Temperature is set to 57, and we have all the hot water pipes insultated from geyser to the wall, and extra insulation around the geyser. (IDK if they have insulation, I do know they don't have a heat pump)

We have full gas cooking. Though both houses have and use an air fryer - and that uses less juice than any of the alternatives.

Generally we do as much during the sunlight hours as possible. We have all LED lighting at home (except for the one in the oven, which is not really a big worry in my life). So at night the system has to support alarm, electric fence, wifi, fridges (2 split fridges and a deep freeze), TV, some lights (7 external) and cell phone charging. We will make a couple of cups of coffee. The heat pump will run at 6 in the morning (before we are getting any useful solar) and we will still have better than 50% remaining SOC.

So the answer to "can we get through the night?" is "it depends". If you have a big tank full of Amazonian pirahna's that must be kept at a constant temperature then probably you won't. If you live as we do (oh... and we found out that an electric blanket doesn't draw a lot really) then you can.

Use the system's monitoring app a lot after the install. You will start to learn what draws power when, and you will start to see where you can optimise. Unless the AI is smart enough to do all that for you - but it would need to know things like what time people take showers.

Edited March 9, 20251 yr by Bobster.
Clarity and omissions

On 2025/03/09 at 1:24 PM, Bobster. said:

I'm erring on the side of cynicsm here, because reading that they claim it doesn't seem they're promising any more than a Sunsynk or a Deye or a Goodwe will do.

Bingo, just got internet back, here, both Vodscum and MTN were down with slow intermittent connections over the weekend, was going to comment that 0ms, just means its a hybrid, like Sunsynk/Deye/Goodwe and nothing special, they are obviously comparing themselves to non-hybrid inverters and thus their pricing seems a tad high...

Running a SIG 6KW inverter 16KW battery unit from last year November with 20 x panels. (2-3 men household one E-geyser , 3 aircons , gas hob located in the South coast) The SIG was the best investment of my life. ( Had a Victron before )

I got a neat cabelfree inside installation. But you can do outside installation aswell. The SIG is completely silent compared to the Victron. There is no fan running inside. The AI powered APP is clever and intuitive. Our house got a thunderstrike in March with NO damage coused on the SIG !!!!! The modular setup gives you endless combination any later updates are in 10 minits done.

On 2025/03/08 at 11:13 PM, scholtz.gnome said:

I know I’m joining this late, but I have been quoted on a Sigenergy system and I’m quite seriously considering going ahead with it soon. The installer is a Herholdt’s Premium Partner and Master Electrician, so I’m hoping they’ll do a good job.

They’ve quoted me on the following:

1. Sigenergy single phase gateway

2. Sigenergy 10KWH inverter

3. Sigenergy 8KWH battery (ground mounted)

4. 12 x 550W panels (North facing)

This is within our budget for now, but the idea with the bigger inverter is to add more panels and battery storage within about a year, enabling us to run as much as possible off our system, even at night. Our primary goal is to cut energy costs, not merely get through load-shedding/outages.

We want a system that will last long and deliver well for what we’re paying, especially in terms of app usability.

We realise we’re taking a bit of a risk, but we figured that Herholdt’s has taken a HUGE risk running their whole Cape Town warehouse off Sigenergy. I also figured our findings might help other residential customers who are uncertain of making the jump.

We also use Plentify’s HotBot on our electric geyser and will enable SolarMode once our system is installed. This will ensure our geyser is never heated during loadshedding, but will default to using clean energy.

Who was your installer, or did Harhold's say you need to use one of their premium installers?

Hi @ccill , I used AAT Electrical. They've been doing my electrical work before I considered doing solar so it seemed natural to get them to install my system. I then found out that they are a Herholdt's Premium Partner and were one of the first in SA to install Sigenergy. That gave me a lot of confidence having them install it.

We've had our system now for a little over a week and we are LOVING it. The app makes it very easy to balance our load vs production, and the Shelly integration is very cool. I'm controlling my pool pump through the Sigenergy app which is very convenient when I'm away from home.

3 hours ago, scholtz.gnome said:

Hi @ccill , I used AAT Electrical. They've been doing my electrical work before I considered doing solar so it seemed natural to get them to install my system. I then found out that they are a Herholdt's Premium Partner and were one of the first in SA to install Sigenergy. That gave me a lot of confidence having them install it.

We've had our system now for a little over a week and we are LOVING it. The app makes it very easy to balance our load vs production, and the Shelly integration is very cool. I'm controlling my pool pump through the Sigenergy app which is very convenient when I'm away from home.

They are definitely pushing to be the market leader. I have seen some videos on their app, which is state of the art compared to any other brand.

The option to select priority with a simple drag and drop order is also simply amazing.

I think you made a great choice.